Technical Guide
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Cable series resonance test wiring
In the operation and maintenance of power systems, the cable series resonance test is an important high-voltage testing method. This test method can effectively detect the insulation performance of cables and ensure the safe operation of power equipment. This article will provide a detailed intro...Read more -
How to eliminate the series resonance generated in a circuit?
Series resonance is a common but potentially serious phenomenon in power systems and electronic circuit design. It occurs when the inductive reactance and capacitive reactance in a circuit cancel each other out at a specific frequency, causing a sharp increase in current that may damage equipment...Read more -
LC series resonant circuit
The LC series resonant circuit is an important resonant circuit structure in electronic circuits, consisting of an inductor L and a capacitor C connected in series. This circuit exhibits unique resonant characteristics at a specific frequency and is widely applied in fields such as radio communic...Read more -
Explanation of the selection method for transformer calibrators
Selecting a transformer calibrator is a rigorous technical decision that requires a deep integration of the instrument’s performance with actual needs and legal regulations. The core logic is: first, clarify the testing objective; then, follow compliance guidelines; and finally, select the ...Read more -
Series resonance impedance characteristics
The series resonant circuit is a special circuit structure that exhibits unique impedance characteristics at a specific frequency. When the inductive reactance and capacitive reactance in the circuit cancel each other out, the circuit presents a pure resistive characteristic, and at this point, t...Read more -
Solutions to Common Faults of AC Withstand Voltage Test Device
In the power system inspection work, the AC withstand voltage test device is an important tool for ensuring the safe operation of electrical equipment. This device applies an AC voltage higher than the rated voltage to test the insulation performance of electrical equipment. However, during actua...Read more -
Working Principle and Standard Procedures of SF6 Trace Moisture Tester
SF₆ gas is the “blood” of high-voltage electrical equipment such as GIS and circuit breakers, with excellent insulating and arc-extinguishing properties, but it is highly sensitive to moisture. Excessive moisture can lead to catastrophic consequences: Insulation deterioration: At high...Read more -
How to conduct AC withstand voltage tests on series resonant devices
In the field of power equipment testing, the AC withstand voltage test is an important method for evaluating the insulation performance of electrical equipment. As a core component of the testing equipment, the series resonance device, with its unique performance advantages, plays an irreplaceabl...Read more -
Explanation of the Selection Method for Portable Relay Protection Testers
Portable relay protection test instruments are the core tools for verifying the accuracy of relay protection and automation devices in power systems. The rational selection and standardized application of these instruments are the key foundations for ensuring the efficiency, accuracy, and safety ...Read more -
The application fields and standard procedures of impulse voltage generators
The impulse voltage generator is a high-voltage device capable of generating standard lightning waves, operational waves, and special impulse waves. Its main function is to evaluate the insulation performance of electrical equipment such as transformers, insulators, and lightning arresters under ...Read more -
The main selection parameters for primary current generators
Selecting the appropriate model of primary current generators is a core prerequisite for ensuring the safe conduct of power testing, the accuracy and reliability of data, and the economic efficiency of investment. The selection process should comprehensively consider the testing requirements and ...Read more -
The composition and selection method of the insulation boot withstand voltage test device
I. Core Components of the Device A complete insulation boot withstand test device is an integrated system. The core components include the following: 1. High-voltage power unit Function: Generate the high voltage required for the test (up to several tens of kilovolts is possible). Core: Test tran...Read more